Re: Dealing with character ranges in grep

[Stanislav Brabec]

Jim Meyering wrote:
> Johannes Meixner wrote:
> > recently I became openSUSE package maintainer for grep and gawk.
> >
> > I added Stanislav Brabec, openSUSE package maintainer for sed.
> >
> > In short:
> > I support and appreciate everything which leads to consistence.
> ..
> 
> Thanks for the quick reply and the support.

grep in openSUSE uses glibc regex by default. With -P command line
argument it uses pcre.

So if we will want consistent support for [=e=], then it should be in
glibc.

Note that libpcre documentation cleanly states, that [=e=] is not
supported tere.
16. PCRE now gives errors for /[.x.]/ and /[=x=]/ as unsupported POSIX
features, as Perl does. Previously, PCRE gave the warnings only for /[[.x.]]/
and /[[=x=]]/. PCRE now also gives an error for /[:name:]/ because it supports
POSIX classes only within a class (e.g. /[[:alpha:]]/).

-- 
Best Regards / S pozdravem,

Stanislav Brabec
software developer
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